One of the spray arms is not rotating
On my whirlpool ADG 8516, one of both spray arms is not rotating. I did some online research and made sure the pump is ok, the arm is not clogged, etc… Also, i was surprised one arm was ok, while the other was not. So i disassembled the bottom arm (the not working one), and saw there was no water coming out of the tube it’s attached to. I took a picture and saw it was shut off by some sort of valve.
I then disassembled the grey tubing and came to this point:
I pushed a bit the round blue plastic piece with the holes around, put everything together again and checked the result. The result was the bottom arm rotating in contrary to the top arm. :-/
So problem not solved but ‘different’. I assume the issue is a broken motor which moves around the blue valve.
My question is: Why is that valve there, what is its purpose? When should it rotate? After a couple of washing cycles the top arm rotates again, but the bottom one is again no longer working. Is it a costly repair? Alternatively, can I get rid of the blue thing, or drill an extra hole in it, so water can get back in the bottom arm?
Is this a good question?